Coordination between microbiota and root endodermis supports plant mineral nutrient homeostasis

Salas-Gonz�lez, Isai; Reyt, Guilhem; Flis, Paulina; Cust�dio, Val�ria; Gopaulchan, David; Bakhoum, Niokhor; Dew, Tristan P.; Suresh, Kiran; Franke, Rochus Benni; Dangl, Jeffery L.; Salt, David E.; Castrillo, Gabriel

Abstract

Copyright © 2021, American Association for the Advancement of Science. Plant roots and animal guts have evolved specialized cell layers to control mineral nutrient homeostasis. These layers must tolerate the resident microbiota while keeping homeostatic integrity. Whether and how the root diffusion barriers in the endodermis, which are critical for the mineral nutrient balance of plants, coordinate with the microbiota is unknown. We demonstrate that genes controlling endodermal function in the model plant Arabidopsis thaliana contribute to the plant microbiome assembly. We characterized a regulatory mechanism of endodermal differentiation driven by the microbiota with profound effects on nutrient homeostasis. Furthermore, we demonstrate that this mechanism is linked to the microbiota's capacity to repress responses to the phytohormone abscisic acid in the root. Our findings establish the endodermis as a regulatory hub coordinating microbiota assembly and homeostatic mechanisms.

Citation

Salas-González, I., Reyt, G., Flis, P., Custódio, V., Gopaulchan, D., Bakhoum, N., …Castrillo, G. (2021). Coordination between microbiota and root endodermis supports plant mineral nutrient homeostasis. Science, 371(6525), Article eabd0695. https://doi.org/10.1126/science.abd0695

• Journal Article Type: Article
• Acceptance Date: Nov 2, 2020
• Online Publication Date: Nov 19, 2020
• Publication Date: Jan 8, 2021
• Deposit Date: Jan 23, 2021
• Publicly Available Date: Jan 25, 2021
• Journal: Science
• Print ISSN: 0036-8075
• Electronic ISSN: 1095-9203
• Publisher: American Association for the Advancement of Science
• Peer Reviewed: Peer Reviewed
• Volume: 371
• Issue: 6525
• Article Number: eabd0695
• DOI: https://doi.org/10.1126/science.abd0695
• Keywords: Multidisciplinary
• Public URL: https://nottingham-repository.worktribe.com/output/5064680
• Publisher URL: https://science.sciencemag.org/content/371/6525/eabd0695
• Additional Information: This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on; 08 Jan 2021: Vol. 371, Issue 6525, DOI: 10.1126/science.abd0695.